FTP APP NOT Working

I can't see files and folders.

shahadul
please check the security tab in the panel and check if the 39000:40000 port is released

aaPanel_Jose This port is released

aaPanel_Jose Mail Server not working properly. I received the mail but I can't send mail.

shahadul
Did you set the ftp directory to /?

shahadul
The running user of ftp is www, and the root directory cannot be read~